note 96576 deleted from function.strpos by danbrown

Note Submitter: jaimthorn at yahoo dot com ---- restaurant.nl may find it bizarre, but I prefer this implementation of strnpos because it doesn't give visible warnings when supplied with a needle of length 0 (which is, admittedly, non-standard behavior), AND it's faster... <?php /** * Returns the position of the $nth occurrence of $needle in $haystack, or false if it doesn't exist, or false when illegal parameters have been supplied. * * @param string $haystack the string to search in. * @param string $needle the string to search for. * @param integer $nth the number of the occurrence to look for. * @param integer $offset the position in $haystack to start looking for $needle. * @return MIXED integer either the position of the $nth occurrence of $needle in $haystack, * or boolean false if it can't be found. */ function strnpos( $haystack, $needle, $nth, $offset = 0 ) { if( 1 > $nth || 0 === strlen( $needle ) ) { return false; } // $offset is incremented in the call to strpos, so make sure that the first call starts at the right position by initially decrementing $offset. --$offset; do { $offset = strpos( $haystack, $needle, ++ $offset ); } while( --$nth && false !== $offset ); return $offset; } ?>